Improved machine for trimming the edges of boots and shoes



PATENT OFFICE.

RICHARD c. LAMnnnr,

OF RAYNHAM, ASSIGNOR TO DAviD wiiifiirnnonn,

OF NORTH BRIDGEWATER, MASSACHUSETTS.

IMPROVED MACHlNE FOR TRIMMING THE EDGES 0F BOOTS AND SHOES.

Speciiication forming 'part of Letters'Pa'tent No. 80,828, dated Augustll, 1868.`

To all whom it may concern:

Be it known that I, RICHARD C. LAMBRT, of Raynham, in the county ofBristol and State of Massachusetts, have invented a new and usefulMachine for Trimming or Paring and Smoothing or Beading the Edge of aShoe or Boot; and I do hereby declare the same to be fully described inthe following specification and represented in the accompanyingdrawings, of which- Figure I is a topv view, Fig. 2 a front eleva tion,and Figs. 3 and 4 are vertical sections, of it.

In such drawings, A denotes the frame of the machine, the inner face ofeach side c a being grooved in manner as represented at b b in Figs. 3and 4. These grooves are to receive the supporting rollers or wheels o cand d d of a jack or carriage, B, such wheels being arranged on it inmanner as represented in Fig. 5, which is atop view of such carriage orjack as separate from the frameA. An clon gated gear is affixed to thecarriage and jack, and engages with a circular gear, D, supported by avibrating lever, E, and made to engage with a pinion, F, arranged uponsuch lever and upon a cranked shaft, G. A spring, e, acting against therear arm of the lever E, operates to keep the gear D in engagement withthe elongated gear G while the two are in movement. j

Within the carriage B is a sole rest and pattern, f, which is to supportthe sole of a shoe, S, during the operation of paring such sole, and isto serve as a pattern to guide the paring-cutter while in operation. Theshoe is forced against the sole-rest by means of two screw clamps orpressers, H I, arranged within the carriage or jack in manner asrepresented. The -clamp I-I consists of a rotary nut, g, and astationary screw, h. The clamp I consists of a saddle, 7c, and a rotaryscrew, Z, the latter being screwed into the part m of the jack. Byrevolving the cranked shaft G vertical, endwise, and rotary movementswill be im,- parted to the jack.

Each end part of the elongated gear C is a circular segment. When eitherof these segmental portions comes into operation with the gear D, twocylindrical bolts, a a, are shot into corresponding recesses, o o, madein the journals of the wheels of the'jaek, there being such a recess inthe journal of each of the Wheels of the jack. These bolts, while ineither pair of recesses, prevent the journals thereof from having anylateral motion eX- cepting that of revolving on their axes. The bolts atproper periods are shot forward by springs p p, rections and held out ofaction with. the jack by means of two cam-bars, qq, xed to the jack andoperating against sliders r r, supported within the frame A, andconnected with the bolts by screws s s. The said bolts, with theirsprings, are arranged in cases t t, fixed to the frame A.

A bent lever, K, so pivotcd to a standard, a, erected on the frame A, asto be capable of being swung or vibrated horizontally, has a spring, o,applied to its shorter arm and iixed to the said standard, the springoperating to force the longer arm ofthe lever in a direc tion toward thegear D. Within the said longer arm-that is, within a space, w, formedtherein-another or hand lever, L, is arranged, and is fastened at itsrear end to the arm, so as to be capable of being moved vertically. Thelever L is jointed to a slide-rod, M, so applied to the lever K as to becapable of playing vertically within it. The said rod proj cci's upwardfrom a cutter-head carrier or frame, N, which carries a paring-knife, x,anda gage or guide, y, and it may also have applied lto it a tool ordevice for either smoothing or smooth ing and creasing the sole-edge.The guide or gage y runs between the sole and the uppei leather of theshoe, and, by being pressed against the sole, keeps the paring-knifefrom cutting into the upper-leather. The cutter frame or head N restsdirectly upon the pe riphery of the pattern f, which gages the depth ofcut of the knife w, and causes it to cut in accordance with the pattern.

The back part of the heel of the solel is not pared by the machine, asthe attendant, while the back part, a', of the jack may be revolvingunder the cutter, should keep the lever L raised', so as to prevent theguide y from running in contact with the part c'.

With the said machine a sole, when sewed or secured to the upper of a she, may have its edge pared. and smoother or pared,

and are moved in the opposite dismoothed, and creased, with greatfacility and y, a paring-knife, m, or the same and another accuracy.tool or implement for smoothing o1" finishing I claimthe edge of a soleof a shoe. The combination of the jack or shoe-holding x 'carriage B,the pattern, the stop-boltsn n, and RICHARD (1' LAMBERT thecutter-carrier N, provided With mechan- Witnesses: ism for operatingthem, substantially as speci- R. H. EDDY,

y fied, such carrier being provided with a gage, F. P. HALE, Jr,

